May 12, 2016

4th Iasi International Conference

4th Iasi International Conference in Antibes Juan-les-Pins, France April 11 to 15, 2016

The 4th IASI conference, organized by CNES and EUMETSAT took place in Antibes Juan-les-Pins, France  from 11 to 15 April 2016. Its objective was to present and review the latest results from the operational and scientific use of nearly 10 years of IASI data. The IASI instruments, on board the meteorological satellites Metop-A and Metop-B of EUMETSAT's EPS programme, were sent in orbit in 2006 and 2012 and the third one is expected to be launched on Metop-C in October 2018.

The conference brought together space agencies and the international scientific community using IASI data, consisting in meteorologists, atmospheric chemists and climatologists. 135 persons from all over the world (Europe, but also Korea, Russia, USA, Canada) attended to the conference. The panorama of the use of IASI data in various topics was drawn through 55 oral presentations and 75 posters. The significant development of IASI data exploitation in all domains these last few years was highlighted.

The precision, the stability and the long temporal series of IASI measurements (at least 15 years with the three models) make their use possible to study the climate. IASI can observe atmospheric water vapour concentrations as well as, under restricted conditions, the CO2 and CH4, all being major contributors to the greenhouse effect.

Thanks to its full and close coverage of the Earth combined with a near real time access to data and its capacity to retrieve numerous chemical species (27 species detected of which about ten are really evaluated), IASI has become an excellent continuous monitoring tool for the atmospheric composition, the quality or air and its evolution. The data enable to analyze of the emission sources of pollutants and their transport in the atmosphere, such as the CO, NO2, Ozone O3, HNO3 or ammonia NH3. It is also possible to perform a daily monitoring of volcanic eruptions (monitoring of ash plumes and SO2 emitted), of fires (CO emission) as well as desert dust and aerosols distribution in the atmosphere.

An increasing part of IASI data is assimilated in the weather forecast operational models at global scale. Researches make progress to allow, in the future, an increasing use of the data, notably by coupling meteorological models with real concentrations of chemical species and aerosols present in the atmosphere and by assimilating micro physical parameters of clouds in the models.

Other scientific topics were presented such as the estimation of temperatures and the infrared emissivity of land and ocean surface, the validation of geophysical data, the state of the art in spectroscopy and radiative transfer. IASI data offer the capacity to improve physical models used by the scientific community. 

The last day of the conference was dedicated to the future. The IASI-NG project and its expectations have been presented in details as well as other future infrared sounding missions of the European, Russian and American space agencies.

For more information about this conference, please visit the site: